diff --git a/subjects/raid3.en.md b/subjects/raid3.en.md
index 36174dd6..f207f221 100644
--- a/subjects/raid3.en.md
+++ b/subjects/raid3.en.md
@@ -14,7 +14,7 @@ Create a program `raid3` that takes a `string` as an argument and displays the n
 
 ### Usage
 
-- If it's `radi1a`
+- If it's `raid1a`
 
 ```console
 student@ubuntu:~/[[ROOT]]/raid3$ ls -l